20614290 has 32 divisors (see below), whose sum is σ = 49645440. Its totient is φ = 5478144.

The previous prime is 20614249. The next prime is 20614303. The reversal of 20614290 is 9241602.

It is a self number, because there is not a number n which added to its sum of digits gives 20614290.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9091 + ... + 11129.

It is an arithmetic number, because the mean of its divisors is an integer number (1551420).

Almost surely, 2^20614290 is an apocalyptic number.

20614290 is an abundant number, since it is smaller than the sum of its proper divisors (29031150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20614290 is a wasteful number, since it uses less digits than its factorization.

20614290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20614290 is about 4540.2962458412. The cubic root of 20614290 is about 274.1928508953.

Adding to 20614290 its reverse (9241602), we get a palindrome (29855892).

The spelling of 20614290 in words is "twenty million, six hundred fourteen thousand, two hundred ninety".